Bane nodded and said "she told me once that elves or people like her are tied to the life energies, and when they burn so much of it off in their body they have to take time to recover that lost power from the world around them..." Gandalf nodded, lighting his pipe as he looked over at Serena. 

Serena smiled slightly, partly awake enough to listen to them. Bilbo smiled and said "dinner is ready"